This quiz works best with JavaScript enabled. Home > Biology > Molecular > Molecular Biology – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Molecular Biology Quiz 19 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which substances are made during photosynthesis and store energy that can be used by cells A) Carbon dioxide and glucose. B) ATP and water. C) Water and glucose. D) Glucose and ATP. Show Answer Correct Answer: D) Glucose and ATP. 2. What is true of oxygen production in photosynthesis? A) Formed during hydrolysis. B) Produced by chlorophyll. C) Produced by ATP synthase. D) Formed from sunlight. Show Answer Correct Answer: A) Formed during hydrolysis. 3. Which one is the statement from Schleiden & Schwann (1838-39) A) All cells come from preexisting cells. B) All living things are made up of cells. C) New cells arise from the pre-existing cells. D) Spontaneous generation does not occur. Show Answer Correct Answer: B) All living things are made up of cells. 4. Which two scientists are accredited with correctly deducing the double helix model of DNA? A) Watson and Crick. B) Wilkins and Franklin. C) Wilkins and Crick. D) Watson and Franklin. Show Answer Correct Answer: A) Watson and Crick. 5. These are the function of RNA polymerase EXCEPT A) Bind to promoter region on the DNA. B) Unwind the DNA double helix. C) Start chain from stretch. D) Stop the transcription. Show Answer Correct Answer: D) Stop the transcription. 6. Which is NOT a difference between DNA and RNA? A) DNA=double helix, RNA=single strand. B) DNA=thymine, RNA=uracil. C) DNA=deoxyribose, RNA=ribose. D) DNA=antiparallel, RNA=parallel. Show Answer Correct Answer: D) DNA=antiparallel, RNA=parallel. 7. What happens during the process of translation? A) Messenger RNA is made from DNA. B) Transfer RNA is make from messenger RNA. C) Copies of DNA are made. D) The cell uses messenger RNA to produce proteins. Show Answer Correct Answer: D) The cell uses messenger RNA to produce proteins. 8. The end of meiosis results in ..... to each other. A) 2 cells that are identical. B) 4 cells that are identical. C) 2 cells that are not identical. D) 4 cells that are not identical. Show Answer Correct Answer: D) 4 cells that are not identical. 9. Synthesizes a short fragment of RNA that allows DNA polymerase III to bind A) Ligase. B) DNA polymerase I. C) Primase. D) Helicase. Show Answer Correct Answer: C) Primase. 10. DNA holds the code for A) Lipids. B) Carbohydrates. C) Protein. D) Sugar. Show Answer Correct Answer: C) Protein. 11. The making of a new DNA strand is called A) Replication. B) Regeneration. C) Transcription. D) Translation. Show Answer Correct Answer: A) Replication. 12. The process of making proteins on the ribosomes based on instructions from messenger RNA is called A) Transcription. B) Transformation. C) Translation. D) Molecular biology. Show Answer Correct Answer: C) Translation. 13. What type of bond joins amino acids to form the polypeptide? A) Peptide bonds. B) Polypeptide bonds. C) Hydrogen bonds. D) Ionic bonds. Show Answer Correct Answer: A) Peptide bonds. 14. The enzyme that cleaves DNA A) Ligase. B) Polymerase. C) Restriction enzyme. D) None of above. Show Answer Correct Answer: C) Restriction enzyme. 15. Which portion of the DNA molecule varies from nucleotide to nucleotide and thus serves as the portion of the nucleotide which codes for amino acid sequences? A) Phosphate sugar. B) Ribose sugar. C) Nitrogenous bases. D) Hydrogen bonds. Show Answer Correct Answer: C) Nitrogenous bases. 16. If a code on a DNA molecule for a specific amino acid is CTA, what would the messenger RNA codon and the transfer RNA anticodon be? A) MRNA = GAU and tRNA = CUA. B) MRNA = GAT and tRNA = CTA. C) MRNA = CUA and tRNA = GAU. D) MRNA = GTU and tRNA = CTA. Show Answer Correct Answer: A) MRNA = GAU and tRNA = CUA. 17. William Hofmeister discovered..... A) Nucleic acid. B) Amino acid. C) RNA. D) Chromosomes. Show Answer Correct Answer: D) Chromosomes. 18. How many amino acids are naturally occurring (synthesized by ribosomes)? A) 19. B) 20. C) 21. D) 22. Show Answer Correct Answer: B) 20. 19. The enzyme that splits open the DNA creates what's called a fork - where the DNA separates into the lagging strand and the ..... strand. A) Leading. B) Leveraging. C) Okazaki. D) Ligase. Show Answer Correct Answer: A) Leading. 20. Where does translation take place in the cell? A) Nucleus. B) Cytoplasm. C) Golgi apparatus. D) Endoplasmic reticulum. Show Answer Correct Answer: B) Cytoplasm. ← PreviousNext →Related QuizzesBiology QuizzesMolecular Biology Quiz 1Molecular Biology Quiz 2Molecular Biology Quiz 3Molecular Biology Quiz 4Molecular Biology Quiz 5Molecular Biology Quiz 6Molecular Biology Quiz 7Molecular Biology Quiz 8Molecular Biology Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books